Seismic Hazard Maps of the Northwest and Central Caucasus on a Detailed Scale

Akimov, V.A.; Zaitsev, V. A.; Larkov, A. S.; Lutikov, A. I.; Ovsyuchenko, А. N.; Panina, L. V.; Рогожин, Е. А.; Rodina, S. N.; Sysolin, A. I.

doi:10.3103/s0747923920050011

Cited by 5 publications

(5 citation statements)

References 6 publications

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“…The created integrated earthquake catalog with a unified magnitude scale can be used by a wide range of researchers studying the seismic regime and seismic hazard of the Central Caucasus [32][33][34][35][36]. The results of the present paper are important for studying the seismic regime and regional assessments of seismic hazard.…”

Section: Discussionmentioning

confidence: 88%

Integrated Earthquake Catalog of the Ossetian Sector of the Greater Caucasus

Vorobieva,

Dzeboev,

Dzeranov

et al. 2023

Applied Sciences

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This article is the continuation of a study by authors to create the most complete and representative earthquake catalogs with a unified magnitude scale. The catalog created of the Ossetian sector of the Greater Caucasus (the territory of the Republic of North Ossetia–Alania and adjacent areas) was formed by the aggregation of all available data from Soviet, modern Russian, and Georgian catalogs, as well as the data from the International Seismological Centre. The integration was carried out using the author’s approach based on the modified nearest neighbor method. The integrated catalog of the Ossetian sector of the Greater Caucasus contains 16,285 events for the period 1962–2022. For all events, magnitude estimates are reduced to a unified “proxy-MW” scale. The integration of data from various sources made it possible to significantly replenish the beginning of the aftershock sequence of the Racha earthquake with MW = 7.0, which occurred on 29 April 1991. There has been a change in the level of registration over time. Thus, there is a significant lack of events for the periods 1967–1970 and 1988–1991; starting from 1995, the catalog is complete for magnitude 3.2, and since 2005 for magnitude 2.2. The integration of Soviet and modern Russian and Georgian catalogs made it possible to significantly increase the completeness and representativeness of seismic events in the studied Ossetian sector of the Greater Caucasus. This once again demonstrates both the fundamental importance of merging seismic data from global, national, and regional catalogs and the effectiveness of the author’s developed method.

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Section: Discussionmentioning

confidence: 88%

Integrated Earthquake Catalog of the Ossetian Sector of the Greater Caucasus

Vorobieva,

Dzeboev,

Dzeranov

et al. 2023

Applied Sciences

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“…Maps of tectonic faults and seismic zones were the most crucial layer in GIS. These materials are well-represented in the works of modern researchers of the 21st century [30][31][32]. It should be noted though that the available data refer only to the northwestern part of the area.…”

Section: Methodsmentioning

confidence: 99%

“…The findings of our archaeological team revealed evidence of earthquakes and landslides on archaeological sites in the Ochamchira region of the Republic of Abkhazia, in the Mokva River basin (Figure 4). [32]) and the Markul settlement (red cross), where multiple traces of earthquakes and landslides were recorded after our expedition's excavations.…”

Section: Methodsmentioning

confidence: 99%

“…Studies related to the influence of the physical environment on human evolution usually focus on climate as the main external driving force of evolution and cultural changes. However, recently, the attention of archaeologists has increasingly focused on the effects of tectonic factors, including theoretical works [33][34][35][36] and research on the impacts of those factors on individual sites, e.g., in the European Bosporus A map of earthquake centers (pink circles) recorded by our team (data from the centers are taken from [32]) and the Markul settlement (red cross), where multiple traces of earthquakes and landslides were recorded after our expedition's excavations.…”

Section: Methodsmentioning

confidence: 99%

“…Figure 4. A map of earthquake centers (pink circles) recorded by our team (data from the centers are taken from[32]) and the Markul settlement (red cross), where multiple traces of earthquakes and landslides were recorded after our expedition's excavations.…”

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confidence: 99%

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Evolving Cultural and Historical Landscapes of Northwestern Colchis during the Medieval Period: Physical Environment and Urban Decline Causes

Trebeleva

Kizilov

Lobkovskiy

et al. 2022

Land

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In Late Antiquity and the Early Middle Ages, both coastal and sub-mountainous parts of Colchis underwent rapid urbanization. In the 12th century, the processes of decline began: Large settlements were replaced by small farmsteads with light wooden buildings, and the economy transformed from commodity-based to subsistence-based. What caused this decline? Was it the social and political events linked to the decline of the Byzantine Empire and changes to world trade routes, or were there other reasons? This article provides the answer. The synergy of archaeological, folkloristic, historical cartographic, climatological, seismological, and hydrological data depicts a strong link between these processes and climate change, which occurred at the turn of the 12th–13th centuries. The beginning of cooling led to a crisis in agriculture. A decline in both farming and cattle breeding could not fail to affect demography. Seismic activity, noted in the same period, led to the destruction of many buildings, including temples, and fortresses, and changes in hydrological networks, which were directly linked to climate change and caused water logging, led to a loss of the functions of coastal areas and their disappearance.

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